The production date is found on the side of the tire, usually in the form of a four-digit number. A series of letters and numbers starting with DOT, the last four digits are the production date, the first two digits represent the production cycle, and the last two digits represent the year of production.
Tire parameters generally include the tire's aspect ratio, load index, top speed, etc. These parameters are represented by numbers and letters, and can usually be seen on the outside of the car tire. For example, if the parameter of a car tire is 195/65 R15 91H, its specific meaning is as follows:
1. 195: Indicates that the width of the tire is 195mm;
2. 65: Indicates that the tire's aspect ratio is 65%. The aspect ratio means the height of the tire divided by its width;
3. R: Indicates that the tire is a radial tire;
4. 15: Indicates that the rim diameter of the tire is 15 inches;
5. 91: Indicates that the load index of the tire is 91, which corresponds to 615kg. The four tires add up to 2460kg;
6. H: Indicates that the maximum speed that the wheel can withstand is 210km/h.
As for the date, take the following automobile tire production date diagram DOT 51 k3 v592 3617 as an example, where 3617 represents the production date of the 36th week of 2017.
How to protect car tires?
Our car owners should check the condition of the wheels before daily use of the car. When the wheels are found to have bulges, air leaks, etc., they should avoid using the vehicle to avoid tire blowouts, skidding, etc. during driving, which is harmful to the safety of the people on the car. There is a greater threat. And car owners should pay more attention to the maintenance of car tires and clean them in time.
